Mensa Junior Codes and Mazes

by RobertAllen (Author)

• Used

  Paperback
  1999

  $6.13

• Used

  Paperback
  1997

  $3.34

  Over 100 secret messages to solve and crazy codes to crack. Each story involves some sort of code, such as a mystery letter or secret message, which you need to crack to find the hidden meaning.